Free Course Image Introduction to Cybersecurity

Free online courseIntroduction to Cybersecurity

Duration of the online course: 7 hours and 43 minutes

4.8

StarStarStarStarStar

(10)

Build job-ready cybersecurity skills with this free online course—secure accounts, data, systems, and privacy with practical web security fundamentals.

In this free course, learn about

  • Core cybersecurity goals, threat models, and attacker/defender mindset
  • Why strong security needs both prevention controls and detection/response
  • Account security: passwords vs passphrases, MFA, and mitigating account takeover
  • Password managers: threat mitigation like password reuse and weak password choice
  • Why servers must not store plaintext passwords; hashing + salting basics
  • Data security concepts: encryption at rest/in transit and key management basics
  • Web communication security: HTTPS and the role of TLS (latest versions) in encryption
  • System security: OS hardening, patching, permissions, and reducing attack surface
  • Software security: common web vulnerabilities and secure coding principles
  • CSRF defense: purpose and use of CSRF tokens to prevent cross-site request forgery
  • Privacy principles: data minimization, tracking risks, and anonymity limitations
  • Browser fingerprinting: identifying users via device/browser attributes beyond cookies

Course Description

Cybersecurity is no longer just an IT concern; it is a core skill for anyone who works, studies, or builds on the internet. This free online course introduces you to the mindset and fundamentals needed to reduce risk, spot threats early, and make better security decisions in everyday digital life. Whether you are exploring a new career path in technology, aiming to protect your personal accounts, or looking to strengthen your understanding of modern web risks, you will gain a clear foundation you can apply immediately.

You will learn why strong security is not only about prevention, but also about detection and response. From there, the course builds practical intuition around securing accounts, including common failures that lead to takeovers and why tools like password managers matter. You will also understand what should never happen behind the scenes when websites handle credentials, and how modern practices protect users even if a system is compromised.

As you progress, you will connect the dots between data, systems, and software security. You will examine how information is protected in transit on the web, what modern encryption standards are meant to achieve, and how to reason about trust when data travels across networks you do not control. You will also develop a sharper eye for web application risks by learning why protections such as CSRF tokens exist and how attackers try to exploit normal user behavior.

Finally, the course addresses privacy in a practical way, helping you understand how tracking and fingerprinting work in web browsing and what that implies for anonymity and user choice. Throughout, short exercises reinforce key concepts, turning abstract ideas into concrete understanding. By the end, you will have a strong entry-level grasp of cybersecurity principles and a clearer sense of the habits and safeguards that help keep accounts, data, and systems resilient.

Course content

  • Video class: CS50 Cybersecurity - Introduction 02m
  • Exercise: In cybersecurity, why is it important to focus on both prevention and detection of threats?
  • Video class: CS50 Cybersecurity - Lecture 0 - Securing Accounts 1h13m
  • Exercise: What is one significant threat that a password manager addresses?
  • Video class: CS50 Cybersecurity - Lecture 1 - Securing Data 1h55m
  • Exercise: In the context of securing your account, why is it a bad practice for a server to store passwords in plain text?
  • Video class: CS50 Cybersecurity - Lecture 2 - Securing Systems 1h17m
  • Exercise: In the context of securing communication over the web, which protocol is the latest version used to encrypt HTTP traffic?
  • Video class: CS50 Cybersecurity - Lecture 3 - Securing Software 1h57m
  • Exercise: What is the purpose of using a CSRF token in web forms?
  • Video class: CS50 Cybersecurity - Lecture 4 - Preserving Privacy 1h18m
  • Exercise: Which of the following choices best describes the concept of 'fingerprinting' in the context of web browsing?

This free course includes:

7 hours and 43 minutes of online video course

Digital certificate of course completion (Free)

Exercises to train your knowledge

100% free, from content to certificate

Ready to get started?Download the app and get started today.

Install the app now

to access the course
Icon representing technology and business courses

Over 5,000 free courses

Programming, English, Digital Marketing and much more! Learn whatever you want, for free.

Calendar icon with target representing study planning

Study plan with AI

Our app's Artificial Intelligence can create a study schedule for the course you choose.

Professional icon representing career and business

From zero to professional success

Improve your resume with our free Certificate and then use our Artificial Intelligence to find your dream job.

You can also use the QR Code or the links below.

QR Code - Download Cursa - Online Courses

Course comments: Introduction to Cybersecurity

K

Kaili

StarStarStarStarStar

I’ve never had a professor like this! I can quickly grasp all this knowledge, and it’s much easier to understand! BEST PROFESSOR EVER!

NC

Notheron Clarke

StarStarStarStarStar

easy to understand and it starts you out slowly

More free courses at Cyber Security

Free Ebook + Audiobooks! Learn by listening or reading!

Download the App now to have access to + 5000 free courses, exercises, certificates and lots of content without paying anything!

  • 100% free online courses from start to finish

    Thousands of online courses in video, ebooks and audiobooks.

  • More than 60 thousand free exercises

    To test your knowledge during online courses

  • Valid free Digital Certificate with QR Code

    Generated directly from your cell phone's photo gallery and sent to your email

Cursa app on the ebook screen, the video course screen and the course exercises screen, plus the course completion certificate